Longest Common Prefix
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水题一道。
public class Solution { public static String longestCommonPrefix(String[] strs) { if(strs.length==0) return ""; if(strs.length==1) return strs[0]; if(strs[0].length() == 0) return ""; int i = 0; for(i = 0; i<strs[0].length(); i++){ for(int j=1;j<strs.length;j++){ if(i >= strs[j].length() || strs[j].charAt(i) != strs[0].charAt(i)){ return strs[0].substring(0, i); } } } return strs[0].substring(0, i); }}
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